Winding machine



Dec. 8, 1925. 1,564,478

M. B. Gnou'r 1 WINDING MACHINE Original Filed April 14, 1922 4 Sheets-Sheet 1 wifi'- Hmm@ f Dec. 8, 1925. 1,564,478

M. B. GROUT wINDING MACHINE original Filed April 14, 1922 4 Sheets-Sheet 2 Hbf-@55mm Dec. s, 1925, 1,564,478

. M. B. GROUT wINDING MACHINE Original Filed April 14. 1922 4 Sheets-Sheet 5 Dec. 8, 1925. 1,564,478

M. B. GROUT WINDING MACHINE original Filed Aprjl l l 922 `4 sheets-sheet 4 l mi i i r Inl/@277011 Patented Dec. 8, 1925.

UNITED STATES imrmrl` oFFics.-

IVIARTIN IB. GROUT, OF CHICAGO, ILLINOIS, ASSIGNOR T0 KELLOGG SWIICHBOARID AND SUPPLY COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OIEPILLINOIS.

' WINDING MACHINE.

Application iiled Aprill 14, 1922, Serial No. 552,565. Renewed May 16, 1925.

wound slmultaneously, andan object of my invention is to lprovide a machine of the above type-l by which this work can be done in a rap1d,`elicient and economical manner.

In machines of the present multiple type, aiplurality of helices or coils may be wound simultaneously, andfwhen a number of coils are wound simultaneously a single tube common to all'of them is used and the wire is wound upon it in separated zones or spaces and each sheet of insulating paper between each layer of convolutions ofwire is, common to all of the coilsso as to mechanically conyneet all the coils together. When the coils have their predetermined number of convolutions, the common tube upon which the coils are smultaneously wound is removed and thereafter the plurality of coils may be separated into individual coils by sawing or cutting through the spaces between the zones of the coils.

The coils wound simultaneousl by the multiple winding machine of the above type are built up of. a plurality of layers of wire, each layer having a pre etermined number of convolutions, while theconvolutions of wire in one layer are insulated Yfrom those` in the adjacent layer by means of several layers of interposed paper. The number of eonvolutions per layer to be placed upon the tube is gauged by means of suitable gearing mechanism. The travel of the wire from left to right, and vice-versa, is controlled by means of suitable' mechanism.

A sheet of paper common to all the coils is introduced'between each successlve layer.

of convolutions and is. ofsuch length as to place several layers of paper insulation bef tween each: layer of convolutions of wire.

The winding machine of the above typepby means of suitable shifting mechanism, travels from left to right, and Vvice versa, to

wind successive layers of wire on the corey or tube, and by means of suitable mechanism or manual means a sheet of insulating paper is introduced between each layer of convolutions.- This sheet of paper" is injected into the coil at the instant one layer is finished `and the next one'begins and is grasped by the strands of wire and wound into the coil simultaneously with thel first, second and third turns of winding in the new layer, dc-

coil, a space equal to the thickness of the paper is placed between the firstnnd second wire turns of the new layer. Should a third layer of paper be-required, a space equal to the thickness of the paper is placed between the second and third wire turns of the new layer. It may readily be seen that in addition to the thickness of the three first wire turns of a new layer the thickness of the paper between the irstand second turns and the second and third turns place the beginning of the fourth wire turn sli htly in ad- Vance of the predetermined fee which has been'set to wind a certain number of convolu- -tions of wire per layer. This slight advance is brought about by the two thicknesses of pap'er between the first and second and second and third wire turns, of a new layer.` Now,

as the machine operates, the feed arms which carry thewire across theI coil are traveling at a predetermined rate, which rate of travel is regulated byrmeans of suitable gearing, and as the beginning of' the fourth turn. 1s slghtly in advance ofthe feed arms, it ma readily be seen that the next fewturns wi l naturally pile up until the feed arms catch up. This piling up at the beginning of a new layer is very objectionable, as it produces a coil which is notuniform in diameter and there is more or lesselability for short- `eircuited turns. lIn winding coils manually, the operator guides the wire by handand the insertion of the paper at-the beginnmg of a -`new layer and the rst two, or three wire turnsof a new' layercan lbe Vso spaced bythe l operator as to overcome this 'iling up of the jfirst few turns. The multip e winding ina-` chnes ofthe above type will not operate direction opposite that of the direction of travel of the carrier, is adjustable and the lspacing of these rst few wire turns depends upon the adjustment of my compensating device. By means of the compensating device, the turns are not crowded ahead y of the predetermined rate oftravel of the carrier because, lsay for example, that the carrier is set to place, X number of turns of wire perv inch to the layer, the instant a new layer. is started the winding spindle upon which the plurality of coils is being wound is moved in a direction opposite that of the travel of'the carrier feed a limited distance, and for the first fewturns the number of turns perinch is reduced the desired or predetermined amount to about Yv turns per inch, and this spacing of the first few turns of each new layer' is brought about by means of the movement of the spindle shaft in"a direction opposite that of the travel. of the carrier feed for a short distance. The limited movement of the spindlel shaft is adiustable by means of stops, and after the limited movement of the spindle. shaft the carrier feed traveling at its predetermined rate rnow places X number ofv turns per inch on the colsuntil the end of ,the coil is reached. whenagain the shifting mechanism is operated and the compensating means again operates to permit the first few turns of the newlaver to be spaced b v meansof the movement'of the spindle shaft.

Another' feature of mv invention is the provision of a novel mechanical means for accomplishing the movement of the compensating` device and the adiustable feature, for

' limiting the movement of the spindle shaft in a direction opposite to the travel of the carrier feed 'at the beginning` of a new layer. Another feature of mv invention is the provision of a novel differential gearing arrangement for accomplishing' the movement of the carrier feed from left to richt, and vice versa, as the case may be The above features of my invention. as well asA others not numerated herein, will bev more fullv described in the ensuing specification.

For a more complete understanding of my .inventionn referencel may be had lto the acvcompanvmg drawings. in which like reference characters in the several views denote i like parts.` The entire coil winding machine :is ofconsiderable size andfor the purpose of more clearly illustrating my invention, I

have placed the controlling mechanism, which is the left-hand portion ofthe machine on one sheet ant. the feedl devices, which is the right hand portion of the machine, on a second sheet. Thus,

Fig. 1 is a plan view of the controlllng mechanism of the machine, which is the lefthand portion of the machine;

Fig. 2 is a plan view of the feeding mechanism of the machine, which is the right-hand portion of the machine;

Fig. 3 is a right side elevation of the machine; y

Fig. 4. is a front elevation of the controlling mechanism illustrated in Fig. 1.

Fig. v5 is a sectional View on the line 5 5 -of Fig. 1;

Fig. 6 isa sectional viewon the line 6-6 of Fig. 1, to illustrate the differential s hifting mechanism;

Fig. 7 is an enlarged sectional view of a' portion of the compensating device of my invention; and

Fig. 8 is a sectional view along the line 8- 8 of Fig..1. l

Referring now more in detail to my invention as illustrated inthe accompanying drawing, and first describing the main parts of the winding machine, it comprises a main frame or mounting plate 2, suitably supported upon a table or legs, not shown. The spindle shaft 3 has secured thereto a pulley wheel 4, which is connected to a power shaft by means of a suitable belt which is in turn connected to suitable tight and loose pulleys yto transmit power to the pulley wheel 4 to r)tate the spindle shaft 3.' The power transmission mechanism is notshown, as it is not a part of my invention, fand any suitable vpower transmlssion may be used for transmitting power to the spindle shaft 3.

The spindle shaft 3 is supported at its one yplate 6 and the opening through which it extends serves as a bearing for the same. The winding spindle shaft 3 has secured at its one end a gear wheel 7 and through the medium of a train of gear wheels 8, 9, 10,

11. and 12 rotary motion is transmitted to a screw shaft'14, and the ratio of the gear wheels 8, 9,-10, 11 and 12 to each other de'- termine the number of convolutions per linch which are placedin each layer of wire ofthe coils that are to be'wound` The screw shaft 14 is threaded and is suitably vjournaled in the end plates 5 and 6, and

associated with the shaft 14 is a reversible gearing device D for purposes as will'pres- .ently be describfd; A reciprocating shaft lis provided, which is jonrnaled at itsone' the base plate 2, and the movement of the lever 17 rocks the reciprocating shaft 15 to either place the threaded face of the arm ,16 in mesh with the threaded shaft 14 or rock the arm 16 so'that its threaded face is out of engagement with the screw 'shaft 14, for purposesas will presently be described.

Referring now to Fig. 2, l illustrate the Vright-hand portion of the winding machine,

which comprises 'thesupply device SD supported upon a suitable base'20 upon which are secured the wire reel or spool racks or brackets RB of which ll show eight, which indicates that the machine is adapted to wind eight coils simultaneously, and as each one is similar in construction, it 1s thought that the description of one will sufce. The spool holder RB comprises 1 a, bracket 21 to which is secured' a rod 22 extending forward of the bracket 21, and se` cured to its free end I show a combinatlon latch and spindle support 23. The spindle 24, which supports the spool of wlre 25, has its one end journaled in the bracket 21 and its other end centered in the head 26 of the support 23, when the support 1s .1n position. The spindle support 23 is held. 1n position by means of a latch 27, whlch when operated permits the support to be swung downward about its pivot 28 to permit the removal of an empty spool cf wire and to permit the placing of a full spool. An arm 30 is pivotally supported on the bracket 2l, and secured to itsv free end l.

show a grooved guide wheel 31. The reciprocating shaft 15 extends through .the end plate 6 and lies forward of thenreel or spool brackets RB, and its end 1s journaled in the bearing 32, which is in turn secured to the base 2. l-show the reciprocating rod 15 equipped with eight guiding arms 33, which have rotatably s ecurecl thereto grooved guide wheels 34, which .1ndicat'es that the machine is adapted to wind eight coilsy simultaneously. Wings 35, one on each side ofthe bracket 21 and l1ntegrally formed therewith, have secured thereto guide wires 36, and slidably mounted on the said wires is ay block 37 carrying a rotatable guide wheel 38. The arm 30 is normally under tension through the` agency of a coil spring 39, which has one end secured to an adjustable pin 40, which rests in a suitable orifice in the rod 22.

The other end of the spring 39 issecured to one arm 4l of. the bell crank lever 42 and other end of the spindle the other arm 43 of the lever 42 has secured thereto a rod 44 whose other end is scoured to the arm 30. rlhe spindle shaft 3, which protrudes through its b-earing in the end plate 46, has secured thereto a winding spindle 45 by means of a hinge joint 46, the

45 being supported by means of a suitable block 47, which is secured to the base 2. Theblock 47 has a clamping member 48 which, when turned, permits the withdrawal of the center 49 so that the winding spindle 45 can be swung forward through the agency of the hinge 46 so that a tube may be'slipped over the winding spindle 45 and forced into .the chuck 50 and clamped therein by means of a suitable set screw. Next, the strands of wire 51 are led from the spools 25 whiell are located at the rear of the winding spinover the groovedwheel 38, thence under the guide wheel 31 on the arm l30, and thence under the guide wheels 34 on the arms 33, which arms 33 are secured to the reciprocating shaft 15, and finally to the tube on the winding spindle 45 and attachedto suitable terminals in any suitable manner. The block e7 has secured to it a coil sprmg 251 of a very light tension, and under -nor mal running conditions of the machine the pull of the wire strands 51 is such as to hold the block 37 against an adjustable stop 253 slidably secured to one of the guide wires 36. Now, if for lany reason the strands 51 become slack, the spring 251, whose other end is 'suitably-secured, takes up this slack and at all times holds the strands 51 taut.

Having described in general the essential parts of the multiple winding machine with which my invention is adaptedto operate, l will now describe in detail the operation of my invention in connection with the wind- `ing machine to shift the spindle shaft 3 and winding spindle 45 as a vfhole a limited distance in a direction opposite that of the travel of the reciprocating shaft 15, for purposes as will now be described in detail. in lEig. 1, in which my invention is clearly illustrated, Tshowa lever 52 pivoted intermediate of its ends by means of the pivot bearing 53 secured to the base 2. The lever 52 is provided with a handle which extends forwardof-the machine proper, so it may be grasped by the operator. The lever52 rests between two plates 54 and 55, and tension screws 56 and 57 are provided to exert downward pressure upon the upperplate 54 so as tov produce frictional engagement between the faces of the plates 54 and 55, and the faces of the lever 52 so as. to hold the lever in eitherof its positions.

isc

The studs` 58, which serve as separators between the plates 54 and 55 also serve as'stops for the lever 52 to limit the movement in its right or left direction, 'llhe lever 52 and its asso-f rae ciated mechanism controls the movement of the reciprocating shaft 15 to the right or left through the agenc of a reversible gearing mechanism D an its associated screw shaft 14. The reversibleI gearing arran ement D comprises a'bevel gear 60 rotataly supported upon a suitable bearing 61 which is secured to the base plate 2 and which meshes with a pair of bevel gears 62 and 63 operatively associated with the screw shaft 14. A. shaft 64 is provided which is suitably journaled in the end plate 5 to permit its rotation and keyed to it is the gear wheel 12 which through its association with the gear train 8, 9, 10, etc., transmits motion to the screw shaft 14. The bevel gear, 62 is secured to the shaft '14 in any suitable manner so that it rotates with the shaft 14, and` being in mesh with the bevel gear 61 motion is transmitted to the said gear 61, and the said bevel gear 61 in turn transmitting motion to the bevel gear 63. The crew shaft 14 has a reduced end portion 65 of a size to fit in the orifice 66 in the end of the shaft 64, which serves as one bearin for. the shaft 14, the other end being journa ed in the end plate 6. The bevel'igear 63 is loosely secured to the shaft 14v and suitably collared to prevent lateral movement of the same on the shaft14.. A sleeve 67 is provided which is slidably mounted upon the shaft 14 between the bevel gears 62 and 63 by means of a suit- `able keyway 68. The plane faces`69 and 70 of the sleeve 67 are toothed, as are the plane facesv71 and 72 of the bevel gears 62 and 63 so that -when the sleeve67 is moved to the left its toothed face 69. meshes with the toothed face 71 of the bevel gear 62, and when moved to the right its toothed face meshes with the toothed face 7 2' of the l bevel gear 63, and the meshing of'these toothed faces determines the direction of travel of the reciprocating shaft 15, as will presently be described.

As illustrated, I show a connecting means between the lever 52 and the slidable sleeve 67 in the form of a rod 73, which has its one end secured .to the head 74 secured to the lever 52, and its other end secured to a yoke 75, which spans the sleeve 67. The legs of the yoke 75 are provided with pins 76 which rest in the annular groove 77 in the sleeve 67 to permit the said sleeve 67 to be shifted to the right or left. The yoke 75 ispivotally supported by means of a collar 78 which isl secured to the shaft 79. As `illustrated in Fig. 1, I show the lever 52 moved to the.

right, Hand through thefagency of the rod 73 this movement is transmitted tothe yoke 75 'which is in turn rocked about` its pivot 79 toshift the sleeve 67 to theV left to cause the toothed face 69 of the'. sleeve 67 to engage the 'toothed face 71 pf the bevel ear 62. Motion is now transmitted to the s eeve 67 and as the sleeve 67 i's'slidablfSfA keyed to the screw shaft 14, the said screw shaft 14 is rotated and as the arm 16, which is secured to the reciprocating shaft 15, has itsscrew face in en agement with the thread of the Ascrew sha t 14, the reciprocating shaft 15 is now carried to the right. By means of 'Y the-clutch mechanism is operated lto disengae the power device from the spindle shaft an stop further operation of the machine 'and permit the o-perator to actuate the lever 52 an automatically release the clutch to perlni the power drive to again be placed in driving relation with the spindle shaft 3 so' that the machine may start again and ,cause the reciprocating shaft 15 to move in a reverse direction. The pulley 4 is loose upon the spindle shaft 3 and is provided with an extension 80 whose plane face 81 is toothed. A slidable collar 82 is keyed to the spindle shaft.3 and its left face 83 is toothed so that when in mesh with the toothed face of the pulley extension 80, power may be transmitted tothe spindle shaft 3. Ayoke 85 pivotally supported intermediate of its ends by means of a suitable bracket 86 which cooperates with the collar 82 to move it into engagement with the power driven' secured to the ase 2. The opposite end of the rod 91 is provided with a post 93 which is provided with an orifice of a size to receive a threaded stud 94 vwhich is suitably secured to the core 95 of solenoid 96. The reciprocating shaft 15 has secured to its left extremity an arm 97 which carries a contact 98 which is operatively associated with a pair of contacts 99 and 100. The contacts 99 and 100 are mounted on a plate 101 which is slidably'secured to a base 102, which base is in turn secured to the base 2. The plate 101 upon which the contacts 99 and may be moved to the right or left a short distance forpurposes as will now be `de-` lob scribed; Assuming that the reciprocating shaft 15 is traveling from right to left, at the instant that the last turn of wire is placed on the layer that thermachinc is Winding in a right to left direc-tion," the contact 98 of the arm 97 engages the contact 99 on the d slidable plate 101. This closure of contacts h gagesthe arm 89 of the yoke 85 to rotate d the said yoke 85 about its pivot 105, and due to the connection between the collar 82 and the yoke 85,-the said collar 82 is moved to the right to di'sengage the. power driven pulley 4, thus stoppin further winding4 of themachine as the pu ley 4 is loose on the shaft 3. The operator now grasps the lever 52 and moves it to the right to place it in the position shown in Fig. v1. This movement of the lever 52 moves the rod 73 to the right and rotates the yoke 75 about its pivot 79 to move the sleeve 67 to .the left, causing the toothed face of the sleeve 67 to disengage the toothed face 72 of the bevel gear 63 and cause the toothed face 69 of the sleeve 67 to engage the toothed face 71 of' the `bevel which has its one end secured vto the yoke 75 and its other end secured to a block 107 which is mounted on the sliding plate 101. Thus, when the yoke 75 is rotated about its p-ivot 79 when the lever` 52 is actuated, the movement of the yoke 75 moves the -rod 1.06 to the left, andas the rod 106 is connected to the plate 101, the' said plate is also moved to the left, opening the contacts 98 and 99. This opening of contacts 98 and 99 opens the energizing circuit of the solenoid 96, and it releases its core 95, allowing the arm 91 to again rotate about its pivot 92 by means of suitable spring means (not shown on the drawing) and again permit the-toothed face 83 of the sleeve 82 to again engage the toothed face 81 of the extension of the power-driven pulley 4, and this is the position of the mechanism as illustrated in Fig. 1 and placesthe'machine in condition to place a layer on the coils from left to right. To start the machine the operator actuates a suitable starting pedal and as the clutch is thrown in a position the shaft 3 is again connected to the power-driven pulley 4 and motion is transmitted to the screw shaft 3 in a direction to causeqthe reciprocating shaft 15 to travel from left to right to place another layer of wire in the core.

The foregoing description .of myinvention points outi in detail theshifting mechanism for reversing the travel of the mechanism to place successive layers of wire on the coil. Now assuming that theoperator is placing another layer of wire on the coil from left to right, and that the Winding` mechanism as' illustrated in Fig. 1 is in a position to start placing the first convolution of wire of a new layer, I will now describe Vtion between each and as before described, when the three laygear 62. (A rod 106 is provided.

-ports an arm 125. The arm pins 133 and 134 and which opening in the stud 143. and is inx detail the operation of the compensating evlce of my inventlon in connection with t e wlnding mechanism. The spindle shaft 3, as before described, has a limited movement to the right or left, depending on the direction of travel of the reciprocating shaft 15 and the amountof movement or throw of the spindle shaft 3 and the winding spinle 45 is regulated by means of the collars 1.20-181 which are adapted to engage the bearing 6, the said collar 120 being adjusta-` ble and held inits adjusted position on the shaft 3 by means of a set screw 121. For the purpose of description, I have assumed that there are three layers of paper insulasuccessive layer of wire,

ers of paper are placed between each layer, the beginning of the fourth turn of wire of a new layer is slightly in advance of the feed and causes the piling up of the next few turns of wire until the feed of the reciprocating shaft 15 has caughtl up. Now, to overcome this objection, l provide a compensatincr device which will take care of this crowding ahead of the first few turns of a new llayer and comprises a supporting block 122 suitably secured to the base 2 by means of screws 123. A supporting post 124 is suitably secured to the mounting. block 122 in any suitable manner and pivotally sup- 125 at its one end is provided with a yoke member 126 which spans a collar 127 loosely supported on the spindle shaft 3, and pins 128 secured to the legs 129 of the yoke 126'rest in suitable slots 130 in the collar 127, which is held in place upon the spindle shaft 3 by means of suitably secured collars 131.

poses. A pair ofv pins 133 and 134 are secured to each side of the arm 125, just back of the yoke 126, and slid-ably supported thereupon Iprovide a U-shaped member 135 which 1s held in its central position .with relation to the arm 125 by means of spiral springs 136 and 137 which lit around the bear respectively against the legs 139 of the U-shaped member 135 and each vside of the arm 125. A

connecting link 140 is provided which is pivotally supported by a bracket 141 secured to the mounting block 122 in any suitable manner. The connectin link 140 is provided with a slot 142 and isof a size to receive a threaded stud 143 which is'provided with a head 144. A nut 145 is provided which has screw-threaded engagement with the threaded stud 143. A pivot pin 146 is provided which passes through a suitable provided withI an enlarged portion 147 which rests in a slot 148 in the bracket 141. The pivot'pin v ceive a pin 151 146 if; threaded at each 'end to receive nuts 149 which pivotally support the link 140 and stud 143 as a whole on the bracket 141. One end of the link 140 is provided with a bifurcated end150 which is adapted to rewhich sets in a stud 152 secured `to the U-shaped member 135. A link connection 153 is provided and its one end has secured thereto a stud 154 which rests in a suitable opening in the lever 52. The other end of the link 153 is bifurcated and securedto this bifurcated end is a member 155 which is provided with an opening of a size to receive the -threaded reduced por-- tion 156 of the link 140. A spring 157 is placed around the threaded portion 1564 of the link 140 between the link 140 and mem ber 155 and a bolt 158, which has screwthreaded engagement with the` threaded portion 156 holds the link connection L53 in place onv the link`140. The arm 125 is provided With a' slot 160 which is of a sizeto receive a lug 161 which is integrall formedl arm 125. Adjustable stops 173 are shown in Fig.

` about its pivot 146`due to tionpwith the' 4til-shaped member 135,

with a plate162 supported upon t e 'upper face of the arm and which plate 162 is p the left, and as the pins 128 of the yoke provided with extended sides which form guiding means for the plate'162. A friction plate 163 provided with a leather face 164 secured to the said plate 163 is pivotally secured tothe plate 162 by means of a pivot bolt 165 which'passes through suitable openings in the friction plate 163 and plate 162 and held against displacement by means of a nut 166 which' has screWthreaded engagement with the threaded end ofthe bolt 165. An orifice 167 in the end of the arm 125 is of a size to receive a suitable helical spring 168 aid is threaded to receive the screw 169 which, when tightened, places the spring 168 under compression to` place the plate 162 and friction plate 163 as a whole under springv tension, for purposes which will presently be described. Secured to the reciprocating shaft 15 by means of a clamp 170 is a friction plate 171 provided with a leather face 172 suitably secured to the'said plate 171, and which cooperates with the friction plate 163 supported by the mounted on the plate 171 and are adjustably secured ythereto by means of screws 174. p i lHaving described the apparatus'which p comprisesmy compensating device, I will now describe in detail its operation. en the lever 52 has been moved to the 'position 1, which is the position of the lever 52 when the reciprocating shaft 15 starts its travelifrom left to right, the movement which placed the lever in this position c-auses the connectinglink 140 to be rotated the link vconnection 153 between lever 52"and the link 140.1 This moves the bifurcated end. 150 of the link 140 to the left, and due to its conngp-i lt e said member 135 is lforced to the left, causing the right-hand spring `137 around the pin 134 to be compressed against its normal tension. Now, the instant that the operator operates the clutch pedal to apply power to the power drive pulley 4, -motion is transmitted to the screw shaft 14 through the train of gearing and the gearing mechanism D, and as the arm 16 of the reciprocating shaft 15 is in engagement with the screw shaft 14, the shaft starts to travel to the" right. The friction plate 171 which is secured to the reciprocating shaft 15 is carried along with the said shaft 15 lthe instant the movement of thev shaft 15 starts, and as the friction plate 163 which is pivotally supported upon thearm 125 is springpressed lnto engagement with the plato 171, a drag. is created between the two plates 163 and 171, and due to the fact that thev arm 125 is pivotally supported upon the post 124, this drag between the plate 171 on the reciprocating shaft 15v and the plate 163 secured to the'arm 125 causes the yoke ortion 126 of thevsaid arm '125 to move to is secured to the spindle" shaft 3 against 1 lateral movement, t s movement is trans mittedl to' the spindle shaft 3, moving it to the left a limited distance. To aid in making the movement of the shaft 3 take place simultaneously with the start of the travel of the reciprocating shaft 15, the spring 137 which was compressed when the lever 52 was moved to the right aids in forcing the arm 125 about its pivot to produce a positive movement of the shaft 3 the instant the reciprocating shaft 15 lstarts its travel from left to right. When the reciprocating shaft 15 is moving from left to right'the spindle shaft 3 is moved to the left as described above, and its limited o is stopped by the face of the collar 181 movement to the left face of the shaft 3-in the end plate 6. Now, v

when the reciprocating shaft 15 is to travel from right to left, the lever 52 is moved to the left, causing the left spring 136 around the pin 133 of the member 135 to be comressed, and the instant that the shaft 15 starts its travel from right to left, the shaft 3 ismoved tothe right due to the drag between the two plates 163 and 171 and the compressed spring 136 as abovedescribed in association with the drag created between the plates 163 vand. 171 move the shaft 3 from left to right. From the above descripytion it may he seen that vthe reciprocating shaft '15 which lcarries the feed arms 33 moves to the right at a` predetermined rate, determined bythe ratio of thegaar train between the .14. rlllfie'spindle shaft 3 rotates a predetermined number of times per minute, and due to the connection between the winding spindle and the spindle shaft 3, the winding arbor or spindle 45 travels at the same rate, and as the reciprocating shaft 15 travels to the right at a predetermined rate, depending upon the gearing ratio, a certain number of turns of wire per layer are placed on the coils being wound. The instant that a new layer is started a sheet of paper insulation is inserted and injected inthe coil by the operator, the sheet of paper insulation being caught between the last layer of wire and the strands of Wire 51 and due to the rotation of the shaft 45 the sheet of insulation is woundiinto the coil and held therein by the new layer f wire, and at the instant that the new layer is started the movement of the spindle shaft 3 and winding spindle 45 takes place in a direction opposite that of the travel of the reciprocating shaft 15 and the rate of turns per inch for the iirst three turns is reduced and they are, therefore, spaced apart. Now, when the f movement of the spindle shaft 3 is stopped due to the face of either collars 120 or 181 engaging the faces of the bearing of the shaft 3 in the end plate (i, depending upon thedirection of travel of the reciprocating shaft l5, the said reciprocating shaft 15 continues to place thepredetermined number of turns per layer on the coil` This spacing of the iirst few turns of a new layer eliminates the crowding, of the irst few turns of a new layer ahead of the predetermined feed rate, as is the case of the multiple winding machines of the type now v in use, and produces a coil which is wound evenly, and all danger of piling up of the first few turns at the beginning of each layer is eliminated.

The amount of compression that may be placed upon the springs 136 and 137 around the pins 133 and 134, and which cooperate with the lll-shaped member 135, is regulated by means of the stud 144 and nut 145 and pivot Screw 146 which as a whole may be moved. upin the slot 142 in the connecting link 140 to give the link a short throw about the pivot 146 in either direction to lace a light tension on the springs 136 or 13 when the lever 52 is moved to the right or left, and when the stud 144, nut l145 and pivot 146 as a whole is moved down in the slot 142, to give the bifurcated end of the link 140 a larger throw to give the springs 13601' 137 a sti tension when the lever 1s moved to the I righ or left.y The tension under which the yto obtain a '136 or 137 the nut'158 may bey turned to move theend of the link 153 up ordown, as the springs 136 and 137 are to act may be accomplished b the means ust described, and ner adjustment of the springs casemay be, to change the distance between :the centers of the pivot 146 and the 4'connec- .posite to the travel reciprocatin means 5. A mac ine of the class'described com,- lprising a Winding spindle, `me ins for feeding. a strand eratin in connection with a particular type of mu tiple winding machine, 1 do not wish to limit the application of my invention to a particular type of winding machine, as my invention is applicable to other types of 'winding machines. lt also do not wish to he limited to the exact structure as shown, as changes and modifications will lreadily Suggest themselves and l, therefore, aim to cover all such changes and modifications as come within the spirit and scope of the appended claims. l

What I' claim as new and desire to secure by United States Letters Patent, is:

1. A. machine of the class described compris'ng a winding spindle, reciprocating means for feeding a strand of wire thereon in layers to form a coil, and means for shifting the winding spindle longitudinally a predetermined distance during the feedin operation of said reciprocating means and at the beginning of each layer.

2. A machine of the class described comprising a winding spindle, reciprocating means for feedinga strand of in layers to form a'vcoil, and means for shifting the winding spindle predetermined distance in a direction 0pmeans and at the be "nning of each layer.

3. A machine of t e class described for winding strands of wire into coils, a winding spindle, power means for rotating said windmg spindle, reciprocating means and guiding members therefor for directing the strands to said spindle, a gear train associated with said reciprocating means to transmit motion thereto from said power means, and means forshifting said winding the feeding operation of lsaid reciprocating means.

4..- A machine of the class described for winding strands of Wire into coils, a wind-v ing spindle and power means for rotating the same, a reciprocating means and guiding members therefor, a feed device associated with said reciprocating means, a .gear train associated with said power means for operating said feed devi-ce to move said reciprocating shaft and 'means for lshifting the winding spindle longitudinally a predetermined distance during a part of the travel of said reciprocating of lwire thereon in layersto form a coil, an arm associated with said reciprocating means, a threaded shaft in engagement with said arm for movlongitudinally a wire thereon v ing said reci rocating means in one direction, means or reversing the direction of travel of said reciprocating means, and

Vmeans for effecting a predetermined longi- 'tudinal movement of said winding Spindle at the beginning of each layei.

6. A machine of the class described oo m. prising a winding spindle, a recivprocating shaft and guiding members therefor for feeding a strand of wire thereon in layers toform a coil, an arm associated with said Sh aft, a threaded sliaft'with which saido arm i3 in engagement for moving said reciproeating shaft in one direction, gearing means, a lever for actuating said means to start the travel of said reciprocating shaft in a reverse direction, and means for effecting a predetermined longitudinal movement of said winding spindle at the beginning of each layer.

7. A. machine of the class described comprising a winding spindle, a reciprocating rod and guiding members therefor for feeding a strand of wire thereon in layers to form a coil, an arm associated with said rod, a threaded shaft with which said arm is in engagement for moving said rod in one direction, reversible gearing means, and a lever for actuating said reversible gearing means at each end of the traverse of said reciprocating rod to reverse the direction of travel of said rod, and means for shifting the winding spindle longitudinally a predetermined distancey in a direction opposite that of the travel of said rod at the beginningfof'each layer.

8., A machine of the class described compiisiig a winding spindle, a reciprocating rod for laying strands of wire in layers thereon, an arm on said rod,a threaded shaft in enga ement with said arm to cause the travel o said rod, reversible gearing means,` a lever for actuating said means at each end` .o f'the traverse of said rod to reverse the direction of travel of said rod and means also under the control of said lever when actuated to shift the winding spindle longitudinally a set distance in a direction opposite that of tlie longitudinal travel of said rod at the instant of reversingv the travel of said rod to start a new layer.

9. A' machine of the class described compiisingl a winding spindle, reciprocating means for feeding a strand of Wire to said o'winding spindle, to form a coil, and means operatively associated with said reciprocating means and winding spindle for effecting predetermined longitudinal movement of said winding shaft relative to said reciprocating means at the beginning of eacl"L layer ofthecoil.. f L A machine of the class described comprising a windin spindle, feedmechanism for feedin stran s of wire to said winding spindle w ere said strands of wire are wound into layers to form coils, reciprocating means for guiding said strands of wire to said winding spindle, and automatic means for moving said winding spindle a predetermined amount in a longitudinal direction at the beginning of each new layer of wire.

11. A machine of the class described including a winding spindle, feed mechanism for feeding strands of wire to said winding determined distance in a direction opposite 87 to the direc-tional movement of said rod at the beginning of each new layer.

12. `A machine of the character described includin a winding spindle, feed mechanism for feeding strands of'wire to said winding 90 spindle to fo m coils, guiding means intermediate said feed mechanism and said winding spindle for guiding said strands of wire to said winding spindle, means for effecting a reciprocating movement of said guiding means during the winding of said coil, and means for effecting a` limited longitudinal movementJ of said winding spindle in a dii-ection opposite to the directional movement of said uiding means at the beginningl of each new ayer. y t

13. A machine of the character described including a winding spindle, a feeding mechanism for feeding a strand of wire to said said rod in a right and left longi- 80 winding spindle, where said strand is wound into layers to forni a coil, a rod having guide. arms secured tliereon'for guiding said strand of wire on said winding spindle, means for causing said rod to niove in a' longitudinal direction during the winding of saidcoil but alternating from right to left at each successive layer of wire, and automatic means for moving said winding spindle a predetermined distance in a longitudinal direction opposite to the longitudinal movement of said rod at the beginning of each new layer,y and adjustable means for said automatic means for controlling the lengt-li of longitudinal movement ofl said winding spindle.

14. A machine of the character described including a winding spindle, feed mechanism for feeding strands of wire to said winding spindle to form coils, guiding meansintermediate of said feed mechanism and said winding spindle for guiding strands of wire to said Winding spindle, means'for effecting reciprocating movement of said ,guiding means durin the winding of said coil, means secure to' said uiding means in frictional engagement wit a frictiona'l'member associated with a pivoted lever connected with said Winding spindle, said mechanical means and frictional members causing a movement of said pivoted lever for eecting longitudinal movement of said winding spindle in a direction opposite to the direc' tional travel of said guiding means.

l5. A machine of the character described including a winding spindle, feed mechanism for feeding strands of wire to said winding spindle to form coils, guiding means intermediate of said feed mechanism and said Winding spindle for guiding strands of wire to said winding spindle, means for effecting.

reciprocating movement of said guiding means during the winding of said coil, means secured to said-guiding means in frictional engagement with a frictional member associated with a pivoted lever connected with said winding spindle, said means and frictional member causing movement of said pivoted lever for effecting a predetermined longitudinal movement of said winding spindle in a direction opposite to the directional travel of said guiding means at the beginning of each new layer of said coils.

16. A machine of the character described including a winding spindle, feed mechanism for feeding a strand of wire to said winding spindle in layers to form a coil, a reciprocating shaft intermediate of said feed mechanism and said winding spindle supporting guiding arms on said reciprocating shaft for carrying said strands of wire to said winding spindle, means for effecting to and fro, movement of said reciprocating shaft during the winding of said coil, a member secured to said reciprocating shaft in frictional engagement with a second member associated with a pivoted lever connectedJ with said winding spindle, said first and second members effecting a predetermined longitudinal movement of said Winding spindle in a direction .opposite to the directional travel of said reciprocating shaft at the beginning of each new layerof said coil.

17. A machine of theclassl described includin'g a winding spindle, a reciprocating rod having members secured thereon for guiding a. strand of wire to said winding spindle where the same are wound into layers to form a coil, means for driving said reciprocating rod and said winding spindle, manual means for starting the operation of said reciprocating rod and winding spindle, electricalmeans for stopping the operation of said rod and spindle upon the completion of each layer of wire, and means associated with said reciprocating rod and said winding spindle for causing said winding spindle to move in a predetermined longitudinal direction opposite to that of said reciprocating rod upon the first few revolutions of said p l winding spindle.

i8. A machine of the class described including a winding spindle, a reciprocating rod having members secured thereon for guiding strands of wire to said winding spindle where the same are wound into layers to form coils, means for driving said reciprocating rod and said winding spindle, manual means for starting the operation of said reciprocating rod and winding spindle, electrical means for stopping the' operation of said rod and spindle upon the completion of each layer of wire, means associated with said reciprocating rod and said winding spindle for causing said windingspindle to move in a longitudinal direction opposite to that yof said reciprocating rod upon the first few revolutions of said winding spindle, and adjustable means for said last means for regulating the extent of longitudinal movement of said winding spindle.

19. A machine ofthe class described comprising a winding spindle, a reciprocating shaft and guiding members @therefor for feeding strands of wire thereon in layers to form coils, a lever associated with said reciprocating shaft for shifting the said winding spindle longitudinally at the beginning of each new layer and means for limiting the amount the winding spindle is shifted longitudinally.

20. A machine of the class described comle, a reciprocating shaft and a guiding member therefor for feeding a strand of wire thereon in layers to form a coil, a lever associated with said reciprocating shaft for shifting. the said winding spindle lonitudinally at the .beginning of each new ayer and a pair of drums located-on said winding spindle and on opposite sides of the said supporting frame, through which the winding spindle extends, for limiting the amount of longitudinal shifting of the said winding spindle.

21. A machine of the class described comprising a supporting frame, a winding spindle, a vreciprocating shaft and guiding members therefor for feeding strands of wire thereon in layers to form coils, a lever associated with said reciprocating shaft for shifting the said winding spindle longitudinally at the start of each newl layer and a pair of drums, located on said winding spindle and on opposite sides of. said supporting frame through which the winding spindle passes, for limiting the amount the winding spindle is shifted longitudinally, one of said pair of drums entering into engagement with one side of said supporting frame when'the spindle is shifted in one direction and the other of said drums entering into engagement with the opposite side of the said supporting frame when the spindle is shifted. in the other direction, sald engagements of said drums and said supporting frame e'ectually limiting the amount prising a supporting frame, a winding spin- A lDO lllO

of longitudinal shifting of the said spindle.

22. A machine of the character described comprising a supporting frame, a winding spindle, a reciprocating shaftv and a guiding member thereon for feeding a strand of Wire to said winding spindle in layers te form a coil, a lever associated with said reciprocatino` shaft for shifting the said spindle longitudinally at the start of each new layer in a direction opposite to that in which the reciprocating shaft is traveling and a pair of drums located on said spindle and on opposite sides of the said supporting frame through which the spindle passes, said drums adapted to engage with opposite sides of the said supporting frame to limit the longitudinal shifting of said winding spindle, the distance the winding spindle is shifted being substantially the same as the distance between the sides of the supporting frame and each of said drums.

23.. A machine of the character described comprising a solenoid, a supporting frame, a winding spindle, a reciprocating shaft and guiding members thereon for feeding strands of wire thereon inlayers to form coils, a threaded shaft, an arm associated with said threaded shaft and said reciproeating shaft for imparting a reciprocal movement to said reciprocating shaft, n arm, carrying an electrical contact, adapted to move with said reciprocating shaft, a pair of electrical contacts', located on said supporting frame but insulated therefrom, for completing an electrical energizing circuit for the said solenoid when either contact is engaged by thesaid movable contact.

9.4. A machine of the character described comprising a solenoid, a supporting frame, a winding spindle, a reciprocating shaft and a guiding member thereof for feeding a strand of wire thereon in layers to form a coil, a threaded shaft, an arm. associated with said threaded shaft and said reciproeating shaft for imparting a reciprocal motion to said reciprocating shaft, an arm, carrying an electrical contact, adapted to move with said reciprocating shaft, a pair of electrical contacts, located on sa".d supporting frame but insulated therefrom, for completing an electrical energizing circuit for the said solenoid when either contact is en* gaged by the said movable contact, one of said contacts engaging with said moving Contact when the said reciprocating shaft has reached one of its extremities of movement and the other of said contacts adapted to engage with said moving contact when the reciprocating shaft has reached its other extremity of movement.

25. A machine of the character described comprising a supporting frame, a solenoid, a winding` spindle, a reciprocating shaft, and guiding members thereof for feeding strands of wire thereon in layers to form coils, a movable electrical contact associated with said reciprocating shaft, a pair of contacts slidably located on said supporting frame but insulated therefrom, adapted to engage with said movable contact to complete an electrical energizing circuit for said solenoid, and means for disengaging either of said pair of contacts from said movable contact to de-energize the said solenoid.

26. A machine of the character described comprising a supporting frame, a winding spindle, power means for driving said winding spindle, a solenoid, a pair of contacts adapted to engage a moving contact to energize said solenoid to disconnect said power means from said winding spindle, means to disengage either of said contacts from said mc ving contact to de-energize said solenoid and'means, actuable after said de-energiza tion, to permit the reconnection of said power means to said winding spindle.

Signed by me at Chicago, in the county of Cook and State of illinois, this 12th day of April, 1922.

MARTIN B. GROUT. 

